CHAPTER 12 NBD FUNCTION (
µµµµ
PD70F3116)
628
User’s Manual U14492EJ3V0UD
Figure 12-1. Image of NBD Space
V850E/IA1
Not
possible
CPU
NBD : Non Break Debug
NBD
unit
NBD dedicated
interface (7 ways)
NBD
tool
Caution
The debug function does not operate under the following conditions.
••••
During reset period
••••
Until DMA initialization termination after reset
••••
Software STOP mode/IDLE mode
••••
Oscillation stabilization time (during TBC count)
12.2 NBD Function Register Map
Table 12-2 shows a map of the control registers of the NBD function. NBD space does not exist in the internal
space of the CPU but exists independently as NBD space. Because of this, NBD space is space that cannot be read
or written from within the CPU but can only be read or written from the NBD dedicated interface (refer to
Figure 12-1
).
Table 12-2. NBD Space Map
Address
Register Name
Symbol
R/W
After Reset
000H
Chip ID register 0
TID0
4EH
001H
Chip ID register 1
TID1
01H
002H
Chip ID register 2
TID2
R
01H
800H
EVTU_A0 to EVTU_A7
Undefined
801H
EVTU_A8 to EVTU_A15
Undefined
802H
EVTU_A16 to EVTU_A23
Undefined
803H
User event address setting register
EVTU_A24 to EVTU_A27
Undefined
820H
User event condition setting register
EVTU_C0
R/W
Undefined
Caution
Since the V850E/IA1 NBD uses DMA that is on-chip in the V850E1 CPU core, settings for DMA are
initialized after reset.
Содержание V850E/IA1 mPD703116
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